Filament spool inner diameter

[sklee 0]

Hi,

May I know the spool inner diameter? I try to buy from other vendor for the filament but their spool inner diameter is only 33mm. I wonder if that fits to Ultimaker 2. I was still pending for my Ultimaker 2 to be delivered.

If the spool inner diameter is too small, is that anyway to modify it?

Thanks.

 

[tinydancer 0]

I just measured my UM2 and it comes out at 49.5mm.

 

[reibuehl 42]

If your spool is 33mm than it will not fit. You will need to print an alternative spool holder first. Take a look at https://youmagine.com/designs/um2-universal-spool-holder or https://youmagine.com/designs/ultimaker2-filament-spool-holder-by-frank26080115